as some of you already know i have been thinking about this for a while... did some great research and found a fellow m42 guy who did this... but he didnt use the plenum (glassed his own) then pipe to afm
1984 bmw k100rs itb (same tps as m42)
1984 bmw k100rs plenum
here are some pics so far....
sawsall vs upper intake manifold
so from here.. going to round and knife edge upper intake to take silicone tube to itb.
tomorrow plan is to pick up vaccuum lines, silicone tube / clamps, etc....
if all goes well.. will install tomorrow night.
only flaw to this... itb 36mm id intake manifold 38mm id.
total cost so far... $130